Mobile Search:How it will change everything...or will it? I think there is a ton more to the world than just registering a name. Sure people will easily be able to link up regular publications and products to web locations, but the reason Amazon is successful is not just its product offering or customer service, but the rich feedback past consumers have left in their system. I think our social interactions and the trails we leave on the web are worth a ton more than this article seems to believe.

I think the links and attention you get from RSS subscribers will have more longterm value than their cost. If hosting costs are killing you go with Blogger or find a host who wants some cheap marketing (a hosted by link on your site).

Its not uncommon for businesses to have loss liters. If many of your readers / RSS subscribers also provide you tons of links then maybe you should look at the bandwidth as an advertising expense.

Free 9 minute video offering tips on how to use Google AdWords contextual advertising. The video describes briefly some of the technology behind how the Google AdWords contextual ad network works.

A couple of the more interesting ideas covered in this video:

the Contextual ads are not based on a single keyword, but the keyword list associated with a specific adgroup.

In addition the adgroup creatives play are also used to help understand what ads to display.

Max PPC and clickthrough rate also play into the order of the ads displayed.

You want to use well themed keyword adgroups to help ensure your ads are delivered properly. Including generic words like laptop can make it harder for Google to understand what your adgroup is trying to sell.

Using appropriate campaign negative keywords can also help further target your ads.

Smart pricing helps reduce the cost of the ad based on Google's predicted value of the click.

Good ideas that were not covered:

While many people find smart pricing to be effective you may also want to manually ensure proper price discounting by disabling content syndication on your search adgroups and then create lower priced adgroups with content syndication enabled.

You need to create new contextual ad groups or enable contextual ads on current ad groups not participating in contextual advertising. Based on the amount you spend on those contextual ads you will get a rebate coupon code.

Placing Image Ads on Google:
"At this time, we won't show image ads on Google. The initial launch of image ads is focused on sites already showing graphical ads. Because Google image ads are targeted specifically to a page's content, advertisers showing ads on these sites would realize the greatest benefit. (Please note that a content site publisher must opt in to the image ads program before your image ads may appear on his or her site.)"

How Does Google Know When to Display Image Ads?
If your image ad is more relevant, it will appear. If not, your text ad may appear in its place. This targeting model ensures you're reaching your prospects with the most effective ads.

Will Google Put Image Ads on My Site?
Google AdSense publishers can chose to opt in to graphic ads. Graphic ads will not automatically appear on AdSense publishers websites. You can choose to run image ads by simply selecting the image ads checkbox from the Ad Preference page of your AdSense account. Or, set your preference at a page level by selecting the type of ads you'd like to show when generating your ad code.